Vehicle-tire.



No. 764,091". PATENTED JULY'5, 1904. G. W. WH-ITTEMORE.

VEHICLE TIRE.

APPLIOATION FILED A' PB. 6, 1904.

M I ell/.20 mp6,

UNITED STATES Patented July 5, 1904.

PATENT ()FFICE.

VEHICLE-TIRE.

SPECIFICATION forming part of Letters Patent No. 764,091, dated July 5,1904,

Application filed lpril 6, 1904. Serial No. 201,799. (No model.)

To It u /wm it may concern.-

Be it known that I, GEORGE W. WI-IITTE- MORE, a citizen of the UnitedStates, residing at Cambridge, in the county of Middlesex and State ofMassachusetts,.have invented an Improvement in India-RubberVehicle-Tires, of which the following description, in connection withthe accompanying drawings, is a specification, like letters on thedrawings representing like parts.

This invention has for its object the production of a novel the forwheels, my aim being to increase the durability of the tire.

Heretofore tires composed of india-rubber have been clamped in thechannel of channeliron by outside retainingwires, the latter contactingwith transverse or cross metallic pins held in said tires.

In practice it has been found that the abrasion of the metallicretaining-wires with the metallic cross-pins results in so wearing theretaining-wires where they contact with said cross-pins that theretaining-wire is weakened and frequently breaks, which results inreleasing the tire. So, also, the cross-pins, as the retaining-wireswear into the same, fail to seat the base of the rubber tire snugly inthe channel of the channel-iron, and, further, in use the jar to whichthe metallic cross-pins are subjected results in loosening said pins inthe tire, so that they are liable to drop out when for any reason thetire is removed from the channeliron. I

A tire composed substantially throughout of homogeneous rubber has greatpractical advantage over a tire the face of which is of rubber and thebase of layers of woven fabric vulcanized and attached to the face, forthe reason that when the tire and base are of homogeneous rubber thetire when being applied to the channel-iron preparatory to receiving theoutside retaining- Wires may be compressedthat is, shortened beyond itsnormal length which after the retaining-wires have been applied to holdthe tire in place results in greater resiliency for the tire, and such atire will last longer than one which is applied in a stretchedcondition.

In my improved tire I employ a series of non-metallic strips extendedtransversely of the tire, their ends being exposed at the shoulder orflange which is overlapped by the retaining-wires. These non-metallicstrips composed of fabric are vulcanized in the rubber of the tire andbecome permanently incorporated therewith, so that they cannot possiblybe detached, nor can they slip in any way in use. The ends of thesenon-metallic strips exposed at the flange of the tire occupy,preferably, such position with relation to said rim that the upper sidesof the strips stand flush with or a little above the face of the flangewhich is overlapped by the outside wires. The outside wires contactingwith the strips are not worn in use, nor are the strips worn and cutoff, for they yield somewhat to the underlying rubber base below them,and these non-metallic strips being separated one from the other andbeing wholly concealed in the rubber of the tire, with the exception oftheir ends, which are extended through the tire and are sustained in orby the flange. strips being exposed in the flange to receive .theretaining-wires enables the tire to be compressed, as stated, when beingapplied to the channel-iron.

Referring to the drawing, A represents part of a channeled iron which isapplied to the felly of a wheel to receive the tire B. This tirecomprises an exterior or tread surface b. I mean thereby the part of thetire that extends beyond the edges of the channeliron and a base Z), thebase being sufliciently wider than the tread to leave flanges L Thetread, base, and flanges are of india-rubber, preferably homogeneous inquality, so that the base as well as the tread may yield to pressure asthe wheel having the tire rolls over the road.

To confine the tire to the channel-iron, I employ outsideretaining-wires C.

My invention resides chiefly in the insertion in the body of the tiretransversely thereof of a series of non-metallic cross-strips a,

- said strips being exposed at the surface of the flange 6 Preferablythe non-metallic strips Said corporate with and cannot become loosenedor detached from the tire. The upper sides of the ends of these stripsare shown as exposed to be acted upon by the retaining-wires O, and thesaid upper sides are and will be either flush with or located somewhatabove the surface of the flange 7). By locating the upper sides of thenon-metallic strips slightly above the india-rubber forming the flangethe strain of the retaining-wires on thetire to retain the same in thechannel-iron is applied chiefly. to the non-metallic strips, thusrelieving the india-rubber part of the flange from contact with thetire.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. A tire having its tread and base composed of india-rubber shaped toform a flange, and a series of non-metallic strips vulcanized in thetire, said strips being exposed in the flange to be acted upon by theretaining-wire employed to retain the tire in the usual channel-rim.

2. An india-rubber tire having side flanges, and provided at intervalswith cross-strips of cloth vulcanized into the body of the tire andexposed near their ends above said flanges, and means for retaining thetire on a channelrim.

3. A channel-rim having an applied tire of substantially homogeneousindia-rubber eapable of being compressed throughout its length whenbeing laid in the channel, said tire having flanges at its sides andpresenting a series of transverse non-metallic strips extendedtherethrough and wholly surrounded by the rubber of the tire except atthe ends of said strip, said ends being exposed at the flanges of thetire, and outside holding-wires overlying the ends of said strips andretaining the compressed tire in placewith a normal tendency to expandin the direction of its length.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE W. WVHITTEMORE.

\Vitnesses:

Geo. W. GREGORY, MARGARET A. DUNN.

